The polar coordinates of a point are ( $$ -10,0 $$ ). Find the rectangular coordinates of this point. The rectangular coordinates are (Simplify your answer. Type an ordered pair. Type an exact answer for each coordinate, using radicals as needed. Use integers or fractions for any numbers in the expression.)

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To convert polar coordinates $$(r, \theta)$$ to rectangular coordinates $$(x, y)$$, we use the formulas:

$$
x = r \cos(\theta)
$$
$$
y = r \sin(\theta)
$$

Given the polar coordinates $$(-10, 0)$$, we have:

- $$r = -10$$
- $$\theta = 0$$

Now, we can calculate the rectangular coordinates:

1. Calculate $$x$$:
   $$
   x = -10 \cos(0) = -10 \cdot 1 = -10
   $$

2. Calculate $$y$$:
   $$
   y = -10 \sin(0) = -10 \cdot 0 = 0
   $$

Thus, the rectangular coordinates are:

$$
\boxed{(-10, 0)}
$$
(-10, 0)

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